Popular Post binderbob Posted July 24, 2019 Popular Post Share Posted July 24, 2019 just acquired a 1961 G-75 LT with ENDT 673 engine, and triplex trans. what kind/weight of oil should I use? thanks for your advice!! thinking of rotating engine with starter with fuel shut off, for a few times and hope to see oil pressure, over a week or so. then changing oil and fuel filters and hopefully starting the girl. any other suggestions? existing fuel in tanks looks clear and clean. 14 Quote Link to comment https://www.bigmacktrucks.com/topic/58260-oil-change-after-30-years-sitting/ Share on other sites More sharing options...
j hancock Posted July 24, 2019 Share Posted July 24, 2019 Fabulous looking G! How does the oil look on the dipstick? Any history about the engine? 15-40 diesel engine oil such as Rotella or Mobil Delvac. 1 Quote JimIt doesn't cost anything to pay attention. Link to comment https://www.bigmacktrucks.com/topic/58260-oil-change-after-30-years-sitting/#findComment-428573 Share on other sites More sharing options...
HeavyGunner Posted July 24, 2019 Share Posted July 24, 2019 Sweet truck. Be sure to document your progress. Hint hint we love pics and a good story about an old Mack. 1 Quote The problems we face today exist because the people who work for a living are outnumbered by the people who vote for a living.The government can only "give" someone what they first take from another. Link to comment https://www.bigmacktrucks.com/topic/58260-oil-change-after-30-years-sitting/#findComment-428580 Share on other sites More sharing options...
Lmackattack Posted July 24, 2019 Share Posted July 24, 2019 if it has the period correct luberfinder it likely has to fill up that whole filter assembly before you start to see any oil pressure. thats how it was on my END711. you might be able to pull the turbo oil feed hose and pressure the block with oil first if you want to play it safe? I think there are some aux ports on the side of the block as well where you could force oil into it? 1 Quote Link to comment https://www.bigmacktrucks.com/topic/58260-oil-change-after-30-years-sitting/#findComment-428585 Share on other sites More sharing options...
Mack Technician Posted July 24, 2019 Share Posted July 24, 2019 9 hours ago, binderbob said: any other suggestions? Had a guy come in to the dealership with just such a truck that was started after decades and was smoking black. I cleaned 30 lbs of mouse nests and droppings out of the air cleaner housing. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/58260-oil-change-after-30-years-sitting/#findComment-428609 Share on other sites More sharing options...
h67st Posted July 24, 2019 Share Posted July 24, 2019 53 minutes ago, Mack Technician said: Had a guy come in to the dealership with just such a truck that was started after decades and was smoking black. I cleaned 30 lbs of mouse nests and droppings out of the air cleaner housing. Great advice...check all intake pipes and inside the turbo. When I start a truck that's been sitting a long time, I like to pull the valve covers and pour the new oil over the rockers so it runs down over the lifters, crank, etc. Pressurizing the oil passages would be even better. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/58260-oil-change-after-30-years-sitting/#findComment-428615 Share on other sites More sharing options...
Mack Technician Posted July 24, 2019 Share Posted July 24, 2019 58 minutes ago, h67st said: Pressurizing the oil passages would be even better. We use to hook our oil pump to the turbo pressure feed and backfill the galleries. 2 Quote Link to comment https://www.bigmacktrucks.com/topic/58260-oil-change-after-30-years-sitting/#findComment-428619 Share on other sites More sharing options...
binderbob Posted July 24, 2019 Author Share Posted July 24, 2019 thanks for all the suggestions!! appreciate it! I think Iam going down the correct path. Quote Link to comment https://www.bigmacktrucks.com/topic/58260-oil-change-after-30-years-sitting/#findComment-428626 Share on other sites More sharing options...
terry Posted July 24, 2019 Share Posted July 24, 2019 (edited) Is that cab as straight in person as the picture looks to be? Looks real nice!!👍👍 terry On a side note I really like those G models. Makes want to make an offer on it!! Edited July 24, 2019 by terry 1 Quote Link to comment https://www.bigmacktrucks.com/topic/58260-oil-change-after-30-years-sitting/#findComment-428642 Share on other sites More sharing options...
wilbur Posted July 24, 2019 Share Posted July 24, 2019 I bet its light too. Would make a good stone cartage truck. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/58260-oil-change-after-30-years-sitting/#findComment-428656 Share on other sites More sharing options...
JoeH Posted July 24, 2019 Share Posted July 24, 2019 There's enough mud on that steering tire for 30 years sitting, but that cab looks rust free. Dirt floor barn find? There is no visible rust, must have come from a no humidity state... 1 Quote Link to comment https://www.bigmacktrucks.com/topic/58260-oil-change-after-30-years-sitting/#findComment-428667 Share on other sites More sharing options...
JoeH Posted July 24, 2019 Share Posted July 24, 2019 (edited) Heads up algae grows in diesel, or at least in the new diesel, so you may want to make liberal use of the fuel tank drain and flush the tank out real well. They make a fungicide additive that kills the algae but it doesn't dissolve it. It'll clog things up pretty good. Flush tank, change fuel filters, put some fresh fuel in it and pump new fuel through the system via the (hopefully equipped, but if not it's easy to install) fuel hand primer pump. You'll want to prefill the new fuel filters, and make sure you lubricate the fuel filter orings. And make sure old oring comes off. Never know with a 30 year old sitter.... (2 fuel filters) Edited July 24, 2019 by JoeH 1 Quote Link to comment https://www.bigmacktrucks.com/topic/58260-oil-change-after-30-years-sitting/#findComment-428671 Share on other sites More sharing options...
Popular Post binderbob Posted July 25, 2019 Author Popular Post Share Posted July 25, 2019 14 hours ago, JoeH said: There's enough mud on that steering tire for 30 years sitting, but that cab looks rust free. Dirt floor barn find? There is no visible rust, must have come from a no humidity state... All the tires were sunk down that far. Looks as if new tires were installed before storage, and not one sign of cracks or weather check. Yes dirt floor barn find. sitting for 25-30 years. no rust/corrosion , frame clean, has always been a northern mn truck. Owner was a flatbedder and made many runs to Alaska. complete with 8 track tapes. picture is of her coming out of storage. 3 1 Quote Link to comment https://www.bigmacktrucks.com/topic/58260-oil-change-after-30-years-sitting/#findComment-428708 Share on other sites More sharing options...
JoeH Posted July 25, 2019 Share Posted July 25, 2019 Great find. I assume you had it towed out? I assume it's not running yet. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/58260-oil-change-after-30-years-sitting/#findComment-428723 Share on other sites More sharing options...
binderbob Posted July 25, 2019 Author Share Posted July 25, 2019 Trailered her home, not running yet, attending to some details. hopefully going to attempt to fire up in next couple weeks. this was a unplanned new project, could not pass her up! 1 Quote Link to comment https://www.bigmacktrucks.com/topic/58260-oil-change-after-30-years-sitting/#findComment-428725 Share on other sites More sharing options...
hatcity Posted July 25, 2019 Share Posted July 25, 2019 Y'all need a matchbook for the 8 track 1 Quote Success is only a stones throw away.................................................................for a Palestinian Link to comment https://www.bigmacktrucks.com/topic/58260-oil-change-after-30-years-sitting/#findComment-428729 Share on other sites More sharing options...
binderbob Posted July 25, 2019 Author Share Posted July 25, 2019 Forgot to mention there was also 2 penthouse magazines under the jump seat. Quote Link to comment https://www.bigmacktrucks.com/topic/58260-oil-change-after-30-years-sitting/#findComment-428739 Share on other sites More sharing options...
wilbur Posted July 25, 2019 Share Posted July 25, 2019 from what year.? 1 Quote Link to comment https://www.bigmacktrucks.com/topic/58260-oil-change-after-30-years-sitting/#findComment-428740 Share on other sites More sharing options...
binderbob Posted July 25, 2019 Author Share Posted July 25, 2019 they were in pretty bad shape but guessing 80s? Quote Link to comment https://www.bigmacktrucks.com/topic/58260-oil-change-after-30-years-sitting/#findComment-428746 Share on other sites More sharing options...
Popular Post HeavyGunner Posted July 26, 2019 Popular Post Share Posted July 26, 2019 19 hours ago, binderbob said: Forgot to mention there was also 2 penthouse magazines under the jump seat. Any good articles in them? From what I hear that’s the only reason guys buy them. 3 2 Quote The problems we face today exist because the people who work for a living are outnumbered by the people who vote for a living.The government can only "give" someone what they first take from another. Link to comment https://www.bigmacktrucks.com/topic/58260-oil-change-after-30-years-sitting/#findComment-428814 Share on other sites More sharing options...
1965 Posted July 26, 2019 Share Posted July 26, 2019 18 hours ago, binderbob said: they were in pretty bad shape but guessing 80s? We need pictures! 1 Quote Link to comment https://www.bigmacktrucks.com/topic/58260-oil-change-after-30-years-sitting/#findComment-428815 Share on other sites More sharing options...
glitchwrks Posted July 26, 2019 Share Posted July 26, 2019 Good looking truck! 1 Quote Link to comment https://www.bigmacktrucks.com/topic/58260-oil-change-after-30-years-sitting/#findComment-428816 Share on other sites More sharing options...
j hancock Posted July 26, 2019 Share Posted July 26, 2019 20 hours ago, binderbob said: Forgot to mention there was also 2 penthouse magazines under the jump seat. Educational reading material... 1 1 Quote JimIt doesn't cost anything to pay attention. Link to comment https://www.bigmacktrucks.com/topic/58260-oil-change-after-30-years-sitting/#findComment-428819 Share on other sites More sharing options...
Freightrain Posted July 29, 2019 Share Posted July 29, 2019 (edited) I'd watch picking them up. The pages might be all stuck together................Ewwwwwwww. All these years and I'm still waiting to find that broke down VW bus full of cheerleaders................LMAO!!!!! Edited July 29, 2019 by Freightrain 1 1 Quote Larry 1959 B61 Liv'n Large...................... Charter member of the "MACK PACK" Link to comment https://www.bigmacktrucks.com/topic/58260-oil-change-after-30-years-sitting/#findComment-428975 Share on other sites More sharing options...
Prowrench Posted July 29, 2019 Share Posted July 29, 2019 I would change the oil prior to cranking, if at all possible remove the injectors first and spray Kroil,or Thrust, or PB Blaster in each cylinder prior to cranking do this for a few days to free up the rings . Then crank the engine with the injectors out (no compression) when you have achieved good oil pressure then reinstall the injectors and light it up 1 Quote Link to comment https://www.bigmacktrucks.com/topic/58260-oil-change-after-30-years-sitting/#findComment-428976 Share on other sites More sharing options...
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